FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/proresdec2.c
Date: 2024-02-29 09:57:37
Exec Total Coverage
Lines: 356 455 78.2%
Functions: 14 16 87.5%
Branches: 185 275 67.3%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2010-2011 Maxim Poliakovski
3 * Copyright (c) 2010-2011 Elvis Presley
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'apco' (Proxy), 'ap4h' (4444), 'ap4x' (4444 XQ)
25 */
26
27 //#define DEBUG
28
29 #define LONG_BITSTREAM_READER
30
31 #include "config_components.h"
32
33 #include "libavutil/internal.h"
34 #include "libavutil/mem_internal.h"
35
36 #include "avcodec.h"
37 #include "codec_internal.h"
38 #include "decode.h"
39 #include "get_bits.h"
40 #include "hwaccel_internal.h"
41 #include "hwconfig.h"
42 #include "idctdsp.h"
43 #include "profiles.h"
44 #include "proresdec.h"
45 #include "proresdata.h"
46 #include "thread.h"
47
48 #define ALPHA_SHIFT_16_TO_10(alpha_val) (alpha_val >> 6)
49 #define ALPHA_SHIFT_8_TO_10(alpha_val) ((alpha_val << 2) | (alpha_val >> 6))
50 #define ALPHA_SHIFT_16_TO_12(alpha_val) (alpha_val >> 4)
51 #define ALPHA_SHIFT_8_TO_12(alpha_val) ((alpha_val << 4) | (alpha_val >> 4))
52
53 5100 static void inline unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs,
54 const int num_bits, const int decode_precision) {
55 5100 const int mask = (1 << num_bits) - 1;
56 int i, idx, val, alpha_val;
57
58 5100 idx = 0;
59 5100 alpha_val = mask;
60 do {
61 do {
62
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58400 if (get_bits1(gb)) {
63 43404 val = get_bits(gb, num_bits);
64 } else {
65 int sign;
66
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14996 val = get_bits(gb, num_bits == 16 ? 7 : 4);
67 14996 sign = val & 1;
68 14996 val = (val + 2) >> 1;
69
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14996 if (sign)
70 val = -val;
71 }
72 58400 alpha_val = (alpha_val + val) & mask;
73
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58400 if (num_bits == 16) {
74
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58400 if (decode_precision == 10) {
75 dst[idx++] = ALPHA_SHIFT_16_TO_10(alpha_val);
76 } else { /* 12b */
77 58400 dst[idx++] = ALPHA_SHIFT_16_TO_12(alpha_val);
78 }
79 } else {
80 if (decode_precision == 10) {
81 dst[idx++] = ALPHA_SHIFT_8_TO_10(alpha_val);
82 } else { /* 12b */
83 dst[idx++] = ALPHA_SHIFT_8_TO_12(alpha_val);
84 }
85 }
86
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58400 if (idx >= num_coeffs)
87 36 break;
88
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58364 } while (get_bits_left(gb)>0 && get_bits1(gb));
89 37552 val = get_bits(gb, 4);
90
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37552 if (!val)
91 35779 val = get_bits(gb, 11);
92
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37552 if (idx + val > num_coeffs)
93 140 val = num_coeffs - idx;
94
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37552 if (num_bits == 16) {
95
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10423952 for (i = 0; i < val; i++) {
96
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10386400 if (decode_precision == 10) {
97 dst[idx++] = ALPHA_SHIFT_16_TO_10(alpha_val);
98 } else { /* 12b */
99 10386400 dst[idx++] = ALPHA_SHIFT_16_TO_12(alpha_val);
100 }
101 }
102 } else {
103 for (i = 0; i < val; i++) {
104 if (decode_precision == 10) {
105 dst[idx++] = ALPHA_SHIFT_8_TO_10(alpha_val);
106 } else { /* 12b */
107 dst[idx++] = ALPHA_SHIFT_8_TO_12(alpha_val);
108 }
109 }
110 }
111
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37552 } while (idx < num_coeffs);
112 5100 }
113
114 static void unpack_alpha_10(GetBitContext *gb, uint16_t *dst, int num_coeffs,
115 const int num_bits)
116 {
117 if (num_bits == 16) {
118 unpack_alpha(gb, dst, num_coeffs, 16, 10);
119 } else { /* 8 bits alpha */
120 unpack_alpha(gb, dst, num_coeffs, 8, 10);
121 }
122 }
123
124 5100 static void unpack_alpha_12(GetBitContext *gb, uint16_t *dst, int num_coeffs,
125 const int num_bits)
126 {
127
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5100 if (num_bits == 16) {
128 5100 unpack_alpha(gb, dst, num_coeffs, 16, 12);
129 } else { /* 8 bits alpha */
130 unpack_alpha(gb, dst, num_coeffs, 8, 12);
131 }
132 5100 }
133
134 73 static av_cold int decode_init(AVCodecContext *avctx)
135 {
136 73 int ret = 0;
137 73 ProresContext *ctx = avctx->priv_data;
138 uint8_t idct_permutation[64];
139
140 73 avctx->bits_per_raw_sample = 10;
141
142
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73 switch (avctx->codec_tag) {
143 14 case MKTAG('a','p','c','o'):
144 14 avctx->profile = AV_PROFILE_PRORES_PROXY;
145 14 break;
146 2 case MKTAG('a','p','c','s'):
147 2 avctx->profile = AV_PROFILE_PRORES_LT;
148 2 break;
149 21 case MKTAG('a','p','c','n'):
150 21 avctx->profile = AV_PROFILE_PRORES_STANDARD;
151 21 break;
152 12 case MKTAG('a','p','c','h'):
153 12 avctx->profile = AV_PROFILE_PRORES_HQ;
154 12 break;
155 24 case MKTAG('a','p','4','h'):
156 24 avctx->profile = AV_PROFILE_PRORES_4444;
157 24 avctx->bits_per_raw_sample = 12;
158 24 break;
159 case MKTAG('a','p','4','x'):
160 avctx->profile = AV_PROFILE_PRORES_XQ;
161 avctx->bits_per_raw_sample = 12;
162 break;
163 default:
164 avctx->profile = AV_PROFILE_UNKNOWN;
165 av_log(avctx, AV_LOG_WARNING, "Unknown prores profile %d\n", avctx->codec_tag);
166 }
167
168
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73 if (avctx->bits_per_raw_sample == 10) {
169 49 av_log(avctx, AV_LOG_DEBUG, "Auto bitdepth precision. Use 10b decoding based on codec tag.\n");
170 } else { /* 12b */
171 24 av_log(avctx, AV_LOG_DEBUG, "Auto bitdepth precision. Use 12b decoding based on codec tag.\n");
172 }
173
174 73 ff_blockdsp_init(&ctx->bdsp);
175 73 ret = ff_proresdsp_init(&ctx->prodsp, avctx->bits_per_raw_sample);
176
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73 if (ret < 0) {
177 av_log(avctx, AV_LOG_ERROR, "Fail to init proresdsp for bits per raw sample %d\n", avctx->bits_per_raw_sample);
178 return ret;
179 }
180
181 73 ff_init_scantable_permutation(idct_permutation,
182 73 ctx->prodsp.idct_permutation_type);
183
184 73 ff_permute_scantable(ctx->progressive_scan, ff_prores_progressive_scan, idct_permutation);
185 73 ff_permute_scantable(ctx->interlaced_scan, ff_prores_interlaced_scan, idct_permutation);
186
187 73 ctx->pix_fmt = AV_PIX_FMT_NONE;
188
189
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73 if (avctx->bits_per_raw_sample == 10){
190 49 ctx->unpack_alpha = unpack_alpha_10;
191
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24 } else if (avctx->bits_per_raw_sample == 12){
192 24 ctx->unpack_alpha = unpack_alpha_12;
193 } else {
194 av_log(avctx, AV_LOG_ERROR, "Fail to set unpack_alpha for bits per raw sample %d\n", avctx->bits_per_raw_sample);
195 return AVERROR_BUG;
196 }
197 73 return ret;
198 }
199
200 1061 static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
201 const int data_size, AVCodecContext *avctx)
202 {
203 int hdr_size, width, height, flags;
204 int version;
205 const uint8_t *ptr;
206 enum AVPixelFormat pix_fmt;
207
208 1061 hdr_size = AV_RB16(buf);
209 ff_dlog(avctx, "header size %d\n", hdr_size);
210
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1061 if (hdr_size > data_size) {
211 av_log(avctx, AV_LOG_ERROR, "error, wrong header size\n");
212 return AVERROR_INVALIDDATA;
213 }
214
215 1061 version = AV_RB16(buf + 2);
216 ff_dlog(avctx, "%.4s version %d\n", buf+4, version);
217
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1061 if (version > 1) {
218 av_log(avctx, AV_LOG_ERROR, "unsupported version: %d\n", version);
219 return AVERROR_PATCHWELCOME;
220 }
221
222 1061 width = AV_RB16(buf + 8);
223 1061 height = AV_RB16(buf + 10);
224
225
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1061 if (width != avctx->width || height != avctx->height) {
226 int ret;
227
228 av_log(avctx, AV_LOG_WARNING, "picture resolution change: %dx%d -> %dx%d\n",
229 avctx->width, avctx->height, width, height);
230 if ((ret = ff_set_dimensions(avctx, width, height)) < 0)
231 return ret;
232 }
233
234 1061 ctx->frame_type = (buf[12] >> 2) & 3;
235 1061 ctx->alpha_info = buf[17] & 0xf;
236
237
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1061 if (ctx->alpha_info > 2) {
238 av_log(avctx, AV_LOG_ERROR, "Invalid alpha mode %d\n", ctx->alpha_info);
239 return AVERROR_INVALIDDATA;
240 }
241
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1061 if (avctx->skip_alpha) ctx->alpha_info = 0;
242
243 ff_dlog(avctx, "frame type %d\n", ctx->frame_type);
244
245
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1061 if (ctx->frame_type == 0) {
246 633 ctx->scan = ctx->progressive_scan; // permuted
247 } else {
248 428 ctx->scan = ctx->interlaced_scan; // permuted
249 428 ctx->frame->flags |= AV_FRAME_FLAG_INTERLACED;
250
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428 if (ctx->frame_type == 1)
251 408 ctx->frame->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST;
252 }
253
254
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1061 if (ctx->alpha_info) {
255
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5 if (avctx->bits_per_raw_sample == 10) {
256 pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P10 : AV_PIX_FMT_YUVA422P10;
257 } else { /* 12b */
258
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5 pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P12 : AV_PIX_FMT_YUVA422P12;
259 }
260 } else {
261
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1056 if (avctx->bits_per_raw_sample == 10) {
262
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643 pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV422P10;
263 } else { /* 12b */
264
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413 pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P12 : AV_PIX_FMT_YUV422P12;
265 }
266 }
267
268
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1061 if (pix_fmt != ctx->pix_fmt) {
269 #define HWACCEL_MAX (CONFIG_PRORES_VIDEOTOOLBOX_HWACCEL)
270 70 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmtp = pix_fmts;
271 int ret;
272
273 70 ctx->pix_fmt = pix_fmt;
274
275 #if CONFIG_PRORES_VIDEOTOOLBOX_HWACCEL
276 *fmtp++ = AV_PIX_FMT_VIDEOTOOLBOX;
277 #endif
278 70 *fmtp++ = ctx->pix_fmt;
279 70 *fmtp = AV_PIX_FMT_NONE;
280
281
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70 if ((ret = ff_get_format(avctx, pix_fmts)) < 0)
282 return ret;
283
284 70 avctx->pix_fmt = ret;
285 }
286
287 1061 ctx->frame->color_primaries = buf[14];
288 1061 ctx->frame->color_trc = buf[15];
289 1061 ctx->frame->colorspace = buf[16];
290 1061 ctx->frame->color_range = AVCOL_RANGE_MPEG;
291
292 1061 ptr = buf + 20;
293 1061 flags = buf[19];
294 ff_dlog(avctx, "flags %x\n", flags);
295
296
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1061 if (flags & 2) {
297
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1061 if(buf + data_size - ptr < 64) {
298 av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
299 return AVERROR_INVALIDDATA;
300 }
301 1061 ff_permute_scantable(ctx->qmat_luma, ctx->prodsp.idct_permutation, ptr);
302 1061 ptr += 64;
303 } else {
304 memset(ctx->qmat_luma, 4, 64);
305 }
306
307
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1061 if (flags & 1) {
308
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1061 if(buf + data_size - ptr < 64) {
309 av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
310 return AVERROR_INVALIDDATA;
311 }
312 1061 ff_permute_scantable(ctx->qmat_chroma, ctx->prodsp.idct_permutation, ptr);
313 } else {
314 memcpy(ctx->qmat_chroma, ctx->qmat_luma, 64);
315 }
316
317 1061 return hdr_size;
318 }
319
320 1489 static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
321 {
322 1489 ProresContext *ctx = avctx->priv_data;
323 int i, hdr_size, slice_count;
324 unsigned pic_data_size;
325 int log2_slice_mb_width, log2_slice_mb_height;
326 int slice_mb_count, mb_x, mb_y;
327 const uint8_t *data_ptr, *index_ptr;
328
329 1489 hdr_size = buf[0] >> 3;
330
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1489 if (hdr_size < 8 || hdr_size > buf_size) {
331 av_log(avctx, AV_LOG_ERROR, "error, wrong picture header size\n");
332 return AVERROR_INVALIDDATA;
333 }
334
335 1489 pic_data_size = AV_RB32(buf + 1);
336
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1489 if (pic_data_size > buf_size) {
337 av_log(avctx, AV_LOG_ERROR, "error, wrong picture data size\n");
338 return AVERROR_INVALIDDATA;
339 }
340
341 1489 log2_slice_mb_width = buf[7] >> 4;
342 1489 log2_slice_mb_height = buf[7] & 0xF;
343
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1489 if (log2_slice_mb_width > 3 || log2_slice_mb_height) {
344 av_log(avctx, AV_LOG_ERROR, "unsupported slice resolution: %dx%d\n",
345 1 << log2_slice_mb_width, 1 << log2_slice_mb_height);
346 return AVERROR_INVALIDDATA;
347 }
348
349 1489 ctx->mb_width = (avctx->width + 15) >> 4;
350
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1489 if (ctx->frame_type)
351 856 ctx->mb_height = (avctx->height + 31) >> 5;
352 else
353 633 ctx->mb_height = (avctx->height + 15) >> 4;
354
355 // QT ignores the written value
356 // slice_count = AV_RB16(buf + 5);
357 1489 slice_count = ctx->mb_height * ((ctx->mb_width >> log2_slice_mb_width) +
358 1489 av_popcount(ctx->mb_width & (1 << log2_slice_mb_width) - 1));
359
360
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1489 if (ctx->slice_count != slice_count || !ctx->slices) {
361 70 av_freep(&ctx->slices);
362 70 ctx->slice_count = 0;
363 70 ctx->slices = av_calloc(slice_count, sizeof(*ctx->slices));
364
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70 if (!ctx->slices)
365 return AVERROR(ENOMEM);
366 70 ctx->slice_count = slice_count;
367 }
368
369
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1489 if (!slice_count)
370 return AVERROR(EINVAL);
371
372
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1489 if (hdr_size + slice_count*2 > buf_size) {
373 av_log(avctx, AV_LOG_ERROR, "error, wrong slice count\n");
374 return AVERROR_INVALIDDATA;
375 }
376
377 // parse slice information
378 1489 index_ptr = buf + hdr_size;
379 1489 data_ptr = index_ptr + slice_count*2;
380
381 1489 slice_mb_count = 1 << log2_slice_mb_width;
382 1489 mb_x = 0;
383 1489 mb_y = 0;
384
385
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89359 for (i = 0; i < slice_count; i++) {
386 87870 SliceContext *slice = &ctx->slices[i];
387
388 87870 slice->data = data_ptr;
389 87870 data_ptr += AV_RB16(index_ptr + i*2);
390
391
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118515 while (ctx->mb_width - mb_x < slice_mb_count)
392 30645 slice_mb_count >>= 1;
393
394 87870 slice->mb_x = mb_x;
395 87870 slice->mb_y = mb_y;
396 87870 slice->mb_count = slice_mb_count;
397 87870 slice->data_size = data_ptr - slice->data;
398
399
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87870 if (slice->data_size < 6) {
400 av_log(avctx, AV_LOG_ERROR, "error, wrong slice data size\n");
401 return AVERROR_INVALIDDATA;
402 }
403
404 87870 mb_x += slice_mb_count;
405
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87870 if (mb_x == ctx->mb_width) {
406 16977 slice_mb_count = 1 << log2_slice_mb_width;
407 16977 mb_x = 0;
408 16977 mb_y++;
409 }
410
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87870 if (data_ptr > buf + buf_size) {
411 av_log(avctx, AV_LOG_ERROR, "error, slice out of bounds\n");
412 return AVERROR_INVALIDDATA;
413 }
414 }
415
416
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1489 if (mb_x || mb_y != ctx->mb_height) {
417 av_log(avctx, AV_LOG_ERROR, "error wrong mb count y %d h %d\n",
418 mb_y, ctx->mb_height);
419 return AVERROR_INVALIDDATA;
420 }
421
422 1489 return pic_data_size;
423 }
424
425 #define DECODE_CODEWORD(val, codebook, SKIP) \
426 do { \
427 unsigned int rice_order, exp_order, switch_bits; \
428 unsigned int q, buf, bits; \
429 \
430 UPDATE_CACHE(re, gb); \
431 buf = GET_CACHE(re, gb); \
432 \
433 /* number of bits to switch between rice and exp golomb */ \
434 switch_bits = codebook & 3; \
435 rice_order = codebook >> 5; \
436 exp_order = (codebook >> 2) & 7; \
437 \
438 q = 31 - av_log2(buf); \
439 \
440 if (q > switch_bits) { /* exp golomb */ \
441 bits = exp_order - switch_bits + (q<<1); \
442 if (bits > FFMIN(MIN_CACHE_BITS, 31)) \
443 return AVERROR_INVALIDDATA; \
444 val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \
445 ((switch_bits + 1) << rice_order); \
446 SKIP(re, gb, bits); \
447 } else if (rice_order) { \
448 SKIP_BITS(re, gb, q+1); \
449 val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \
450 SKIP(re, gb, rice_order); \
451 } else { \
452 val = q; \
453 SKIP(re, gb, q+1); \
454 } \
455 } while (0)
456
457 #define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
458
459 #define FIRST_DC_CB 0xB8
460
461 static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
462
463 262098 static av_always_inline int decode_dc_coeffs(GetBitContext *gb, int16_t *out,
464 int blocks_per_slice)
465 {
466 int16_t prev_dc;
467 int code, i, sign;
468
469 262098 OPEN_READER(re, gb);
470
471
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262098 DECODE_CODEWORD(code, FIRST_DC_CB, LAST_SKIP_BITS);
472 262098 prev_dc = TOSIGNED(code);
473 262098 out[0] = prev_dc;
474
475 262098 out += 64; // dc coeff for the next block
476
477 262098 code = 5;
478 262098 sign = 0;
479
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5213076 for (i = 1; i < blocks_per_slice; i++, out += 64) {
480
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4950978 DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6U)], LAST_SKIP_BITS);
481
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4950978 if(code) sign ^= -(code & 1);
482 1852456 else sign = 0;
483 4950978 prev_dc += (((code + 1) >> 1) ^ sign) - sign;
484 4950978 out[0] = prev_dc;
485 }
486 262098 CLOSE_READER(re, gb);
487 262098 return 0;
488 }
489
490 // adaptive codebook switching lut according to previous run/level values
491 static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
492 static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
493
494 262098 static av_always_inline int decode_ac_coeffs(AVCodecContext *avctx, GetBitContext *gb,
495 int16_t *out, int blocks_per_slice)
496 {
497 262098 const ProresContext *ctx = avctx->priv_data;
498 int block_mask, sign;
499 unsigned pos, run, level;
500 int max_coeffs, i, bits_left;
501 262098 int log2_block_count = av_log2(blocks_per_slice);
502
503 262098 OPEN_READER(re, gb);
504 262098 UPDATE_CACHE(re, gb); \
505 262098 run = 4;
506 262098 level = 2;
507
508 262098 max_coeffs = 64 << log2_block_count;
509 262098 block_mask = blocks_per_slice - 1;
510
511 262098 for (pos = block_mask;;) {
512 84950870 bits_left = gb->size_in_bits - re_index;
513
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84950870 if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left)))
514 break;
515
516
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84688772 DECODE_CODEWORD(run, run_to_cb[FFMIN(run, 15)], LAST_SKIP_BITS);
517 84688772 pos += run + 1;
518
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84688772 if (pos >= max_coeffs) {
519 av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs);
520 return AVERROR_INVALIDDATA;
521 }
522
523
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84688772 DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)], SKIP_BITS);
524 84688772 level += 1;
525
526 84688772 i = pos >> log2_block_count;
527
528 84688772 sign = SHOW_SBITS(re, gb, 1);
529 84688772 SKIP_BITS(re, gb, 1);
530 84688772 out[((pos & block_mask) << 6) + ctx->scan[i]] = ((level ^ sign) - sign);
531 }
532
533 262098 CLOSE_READER(re, gb);
534 262098 return 0;
535 }
536
537 87870 static int decode_slice_luma(AVCodecContext *avctx, SliceContext *slice,
538 uint16_t *dst, int dst_stride,
539 const uint8_t *buf, unsigned buf_size,
540 const int16_t *qmat)
541 {
542 87870 const ProresContext *ctx = avctx->priv_data;
543 87870 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
544 int16_t *block;
545 GetBitContext gb;
546 87870 int i, blocks_per_slice = slice->mb_count<<2;
547 int ret;
548
549
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2296434 for (i = 0; i < blocks_per_slice; i++)
550 2208564 ctx->bdsp.clear_block(blocks+(i<<6));
551
552 87870 init_get_bits(&gb, buf, buf_size << 3);
553
554
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87870 if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
555 return ret;
556
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87870 if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
557 return ret;
558
559 87870 block = blocks;
560
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640011 for (i = 0; i < slice->mb_count; i++) {
561 552141 ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
562 552141 ctx->prodsp.idct_put(dst +8, dst_stride, block+(1<<6), qmat);
563 552141 ctx->prodsp.idct_put(dst+4*dst_stride , dst_stride, block+(2<<6), qmat);
564 552141 ctx->prodsp.idct_put(dst+4*dst_stride+8, dst_stride, block+(3<<6), qmat);
565 552141 block += 4*64;
566 552141 dst += 16;
567 }
568 87870 return 0;
569 }
570
571 174228 static int decode_slice_chroma(AVCodecContext *avctx, SliceContext *slice,
572 uint16_t *dst, int dst_stride,
573 const uint8_t *buf, unsigned buf_size,
574 const int16_t *qmat, int log2_blocks_per_mb)
575 {
576 174228 ProresContext *ctx = avctx->priv_data;
577 174228 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
578 int16_t *block;
579 GetBitContext gb;
580 174228 int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
581 int ret;
582
583
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3178740 for (i = 0; i < blocks_per_slice; i++)
584 3004512 ctx->bdsp.clear_block(blocks+(i<<6));
585
586 174228 init_get_bits(&gb, buf, buf_size << 3);
587
588
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174228 if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
589 return ret;
590
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174228 if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
591 return ret;
592
593 174228 block = blocks;
594
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1268790 for (i = 0; i < slice->mb_count; i++) {
595
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2596818 for (j = 0; j < log2_blocks_per_mb; j++) {
596 1502256 ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
597 1502256 ctx->prodsp.idct_put(dst+4*dst_stride, dst_stride, block+(1<<6), qmat);
598 1502256 block += 2*64;
599 1502256 dst += 8;
600 }
601 }
602 174228 return 0;
603 }
604
605 /**
606 * Decode alpha slice plane.
607 */
608 5100 static void decode_slice_alpha(const ProresContext *ctx,
609 uint16_t *dst, int dst_stride,
610 const uint8_t *buf, int buf_size,
611 int blocks_per_slice)
612 {
613 GetBitContext gb;
614 int i;
615 5100 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
616 int16_t *block;
617
618
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168300 for (i = 0; i < blocks_per_slice<<2; i++)
619 163200 ctx->bdsp.clear_block(blocks+(i<<6));
620
621 5100 init_get_bits(&gb, buf, buf_size << 3);
622
623
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5100 if (ctx->alpha_info == 2) {
624 5100 ctx->unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 16);
625 } else {
626 ctx->unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 8);
627 }
628
629 5100 block = blocks;
630
631
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86700 for (i = 0; i < 16; i++) {
632 81600 memcpy(dst, block, 16 * blocks_per_slice * sizeof(*dst));
633 81600 dst += dst_stride >> 1;
634 81600 block += 16 * blocks_per_slice;
635 }
636 5100 }
637
638 87870 static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
639 {
640 87870 const ProresContext *ctx = avctx->priv_data;
641 87870 SliceContext *slice = &ctx->slices[jobnr];
642 87870 const uint8_t *buf = slice->data;
643 87870 AVFrame *pic = ctx->frame;
644 int i, hdr_size, qscale, log2_chroma_blocks_per_mb;
645 int luma_stride, chroma_stride;
646 int y_data_size, u_data_size, v_data_size, a_data_size, offset;
647 uint8_t *dest_y, *dest_u, *dest_v;
648 87870 LOCAL_ALIGNED_16(int16_t, qmat_luma_scaled, [64]);
649 87870 LOCAL_ALIGNED_16(int16_t, qmat_chroma_scaled,[64]);
650 int mb_x_shift;
651 int ret;
652 uint16_t val_no_chroma;
653
654 87870 slice->ret = -1;
655 //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
656 // jobnr, slice->mb_count, slice->mb_x, slice->mb_y);
657
658 // slice header
659 87870 hdr_size = buf[0] >> 3;
660 87870 qscale = av_clip(buf[1], 1, 224);
661
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87870 qscale = qscale > 128 ? qscale - 96 << 2: qscale;
662 87870 y_data_size = AV_RB16(buf + 2);
663 87870 u_data_size = AV_RB16(buf + 4);
664 87870 v_data_size = slice->data_size - y_data_size - u_data_size - hdr_size;
665
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87870 if (hdr_size > 7) v_data_size = AV_RB16(buf + 6);
666 87870 a_data_size = slice->data_size - y_data_size - u_data_size -
667 87870 v_data_size - hdr_size;
668
669
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87870 if (y_data_size < 0 || u_data_size < 0 || v_data_size < 0
670
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87870 || hdr_size+y_data_size+u_data_size+v_data_size > slice->data_size){
671 av_log(avctx, AV_LOG_ERROR, "invalid plane data size\n");
672 return AVERROR_INVALIDDATA;
673 }
674
675 87870 buf += hdr_size;
676
677
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5711550 for (i = 0; i < 64; i++) {
678 5623680 qmat_luma_scaled [i] = ctx->qmat_luma [i] * qscale;
679 5623680 qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
680 }
681
682
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87870 if (ctx->frame_type == 0) {
683 44622 luma_stride = pic->linesize[0];
684 44622 chroma_stride = pic->linesize[1];
685 } else {
686 43248 luma_stride = pic->linesize[0] << 1;
687 43248 chroma_stride = pic->linesize[1] << 1;
688 }
689
690
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87870 if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10 ||
691
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87870 avctx->pix_fmt == AV_PIX_FMT_YUV444P12 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P12) {
692 32946 mb_x_shift = 5;
693 32946 log2_chroma_blocks_per_mb = 2;
694 } else {
695 54924 mb_x_shift = 4;
696 54924 log2_chroma_blocks_per_mb = 1;
697 }
698
699 87870 offset = (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
700 87870 dest_y = pic->data[0] + offset;
701 87870 dest_u = pic->data[1] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
702 87870 dest_v = pic->data[2] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
703
704
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87870 if (ctx->frame_type && ctx->first_field ^ !!(ctx->frame->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST)) {
705 21624 dest_y += pic->linesize[0];
706 21624 dest_u += pic->linesize[1];
707 21624 dest_v += pic->linesize[2];
708 21624 offset += pic->linesize[3];
709 }
710
711 87870 ret = decode_slice_luma(avctx, slice, (uint16_t*)dest_y, luma_stride,
712 buf, y_data_size, qmat_luma_scaled);
713
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87870 if (ret < 0)
714 return ret;
715
716
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87870 if (!(avctx->flags & AV_CODEC_FLAG_GRAY) && (u_data_size + v_data_size) > 0) {
717 87114 ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_u, chroma_stride,
718 buf + y_data_size, u_data_size,
719 qmat_chroma_scaled, log2_chroma_blocks_per_mb);
720
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87114 if (ret < 0)
721 return ret;
722
723 87114 ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_v, chroma_stride,
724 87114 buf + y_data_size + u_data_size, v_data_size,
725 qmat_chroma_scaled, log2_chroma_blocks_per_mb);
726
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87114 if (ret < 0)
727 return ret;
728 }
729 else {
730 756 size_t mb_max_x = slice->mb_count << (mb_x_shift - 1);
731 size_t i, j;
732
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756 if (avctx->bits_per_raw_sample == 10) {
733 756 val_no_chroma = 511;
734 } else { /* 12b */
735 val_no_chroma = 511 * 4;
736 }
737
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12852 for (i = 0; i < 16; ++i)
738
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634176 for (j = 0; j < mb_max_x; ++j) {
739 622080 *(uint16_t*)(dest_u + (i * chroma_stride) + (j << 1)) = val_no_chroma;
740 622080 *(uint16_t*)(dest_v + (i * chroma_stride) + (j << 1)) = val_no_chroma;
741 }
742 }
743
744 /* decode alpha plane if available */
745
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87870 if (ctx->alpha_info && pic->data[3] && a_data_size) {
746 5100 uint8_t *dest_a = pic->data[3] + offset;
747 5100 decode_slice_alpha(ctx, (uint16_t*)dest_a, luma_stride,
748 5100 buf + y_data_size + u_data_size + v_data_size,
749 5100 a_data_size, slice->mb_count);
750 }
751
752 87870 slice->ret = 0;
753 87870 return 0;
754 }
755
756 1489 static int decode_picture(AVCodecContext *avctx)
757 {
758 1489 ProresContext *ctx = avctx->priv_data;
759 int i;
760 1489 int error = 0;
761
762 1489 avctx->execute2(avctx, decode_slice_thread, NULL, NULL, ctx->slice_count);
763
764
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89359 for (i = 0; i < ctx->slice_count; i++)
765 87870 error += ctx->slices[i].ret < 0;
766
767
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1489 if (error)
768 ctx->frame->decode_error_flags = FF_DECODE_ERROR_INVALID_BITSTREAM;
769
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1489 if (error < ctx->slice_count)
770 1489 return 0;
771
772 return ctx->slices[0].ret;
773 }
774
775 1061 static int decode_frame(AVCodecContext *avctx, AVFrame *frame,
776 int *got_frame, AVPacket *avpkt)
777 {
778 1061 ProresContext *ctx = avctx->priv_data;
779 1061 const uint8_t *buf = avpkt->data;
780 1061 int buf_size = avpkt->size;
781 int frame_hdr_size, pic_size, ret;
782
783
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1061 if (buf_size < 28 || AV_RL32(buf + 4) != AV_RL32("icpf")) {
784 av_log(avctx, AV_LOG_ERROR, "invalid frame header\n");
785 return AVERROR_INVALIDDATA;
786 }
787
788 1061 ctx->frame = frame;
789 1061 ctx->frame->pict_type = AV_PICTURE_TYPE_I;
790 1061 ctx->frame->flags |= AV_FRAME_FLAG_KEY;
791 1061 ctx->first_field = 1;
792
793 1061 buf += 8;
794 1061 buf_size -= 8;
795
796 1061 frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
797
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1061 if (frame_hdr_size < 0)
798 return frame_hdr_size;
799
800 1061 buf += frame_hdr_size;
801 1061 buf_size -= frame_hdr_size;
802
803
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1061 if ((ret = ff_thread_get_buffer(avctx, frame, 0)) < 0)
804 return ret;
805 1061 ff_thread_finish_setup(avctx);
806
807
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1061 if (avctx->hwaccel) {
808 const FFHWAccel *hwaccel = ffhwaccel(avctx->hwaccel);
809 ret = hwaccel->start_frame(avctx, NULL, 0);
810 if (ret < 0)
811 return ret;
812 ret = hwaccel->decode_slice(avctx, avpkt->data, avpkt->size);
813 if (ret < 0)
814 return ret;
815 ret = hwaccel->end_frame(avctx);
816 if (ret < 0)
817 return ret;
818 goto finish;
819 }
820
821 1061 decode_picture:
822 1489 pic_size = decode_picture_header(avctx, buf, buf_size);
823
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1489 if (pic_size < 0) {
824 av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
825 return pic_size;
826 }
827
828
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1489 if ((ret = decode_picture(avctx)) < 0) {
829 av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
830 return ret;
831 }
832
833 1489 buf += pic_size;
834 1489 buf_size -= pic_size;
835
836
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1489 if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
837 428 ctx->first_field = 0;
838 428 goto decode_picture;
839 }
840
841 1061 finish:
842 1061 *got_frame = 1;
843
844 1061 return avpkt->size;
845 }
846
847 73 static av_cold int decode_close(AVCodecContext *avctx)
848 {
849 73 ProresContext *ctx = avctx->priv_data;
850
851 73 av_freep(&ctx->slices);
852
853 73 return 0;
854 }
855
856 #if HAVE_THREADS
857 static int update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
858 {
859 ProresContext *csrc = src->priv_data;
860 ProresContext *cdst = dst->priv_data;
861
862 cdst->pix_fmt = csrc->pix_fmt;
863
864 return 0;
865 }
866 #endif
867
868 const FFCodec ff_prores_decoder = {
869 .p.name = "prores",
870 CODEC_LONG_NAME("Apple ProRes (iCodec Pro)"),
871 .p.type = AVMEDIA_TYPE_VIDEO,
872 .p.id = AV_CODEC_ID_PRORES,
873 .priv_data_size = sizeof(ProresContext),
874 .init = decode_init,
875 .close = decode_close,
876 FF_CODEC_DECODE_CB(decode_frame),
877 UPDATE_THREAD_CONTEXT(update_thread_context),
878 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS,
879 .p.profiles = NULL_IF_CONFIG_SMALL(ff_prores_profiles),
880 .hw_configs = (const AVCodecHWConfigInternal *const []) {
881 #if CONFIG_PRORES_VIDEOTOOLBOX_HWACCEL
882 HWACCEL_VIDEOTOOLBOX(prores),
883 #endif
884 NULL
885 },
886 };
887